established. From these cultures two new pentacyclic triterpenes, 3-epi-pomolic acid 3alpha-acetate (3alpha-acetoxy-19alpha-hydroxyursa-12-en-28-oic acid) (1) and baloic acid (3alpha-acetoxy-19alpha-hydroxyursa-12,20(30)-dien-28-oic acid) (9), were isolated. The former was also obtained from P. pendula natural roots, together with another two new pentacyclic triterpenes, 3-epi-pomolic acid (3alpha,19
建立了发根农杆菌转化的Plocama pendula根培养物。从这些培养物中得到了两个新的五环三萜,3-表波
摩尔酸3α-
乙酸盐(3alpha-乙酰氧基-19α-羟基ursa-12-en-28-oic酸)(1)和ba酸(3α-乙酰氧基-19α-羟基ursa-分离出12,20(30)-二烯-28-
油酸(9)。前者也是从P. pendula的天然根中获得的,还有另外两个新的五环三萜,3-表-环氧酸(3alpha,19alpha-dihydroxyursa-12-en-28-oic acid)(3)和19alpha-hydroxyoleanonic acid (19α-羟基-3-氧代-油烷基-12-en-28-
油酸)(12)。